Обсуждение: pgsql: Expose BufferUsageAccumDiff().
Expose BufferUsageAccumDiff(). Previously pg_stat_statements calculated the difference of buffer counters by its own code even while BufferUsageAccumDiff() had the same code. This commit expose BufferUsageAccumDiff() and makes pg_stat_statements use it for the calculation, in order to simply the code. This change also would be useful for the upcoming patch for the planning counters in pg_stat_statements because the patch will add one more code for the calculation of difference of buffer counters and that can easily be done by using BufferUsageAccumDiff(). Author: Julien Rouhaud Reviewed-by: Fujii Masao Discussion: https://postgr.es/m/bdfee4e0-a304-2498-8da5-3cb52c0a193e@oss.nttdata.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/4a539a25ebfc48329fd656a95f3c1eb2cda38af3 Modified Files -------------- contrib/pg_stat_statements/pg_stat_statements.c | 26 ++----------------------- src/backend/executor/instrument.c | 4 +--- src/include/executor/instrument.h | 2 ++ 3 files changed, 5 insertions(+), 27 deletions(-)